Research on Key Management Server Key Re-encryption Technology

This paper researches the key re-encryption technology of the key management server, and solves the storage security problem faced by massive key management under content association key encryption mechanism. The key management server must ensure the security of the managed key. Re-encrypting the key, for example, is a good strategy. The key data in the key management server is mostly presented in a flattened form, and there is no obvious feature structure in the data. Therefore, the key data is re-encoded by the run-length encoding algorithm, then the re-encoded key data is analyzed to determine the sensitive data extraction algorithm, and the compression coding and the sensitive data extraction are combined to realize the key re-encryption. The test results show that the method can realize the re-encryption of the key.